Improvement in the manupaotobe op paints



nits tat 1:5. gaunt @ffimQ WILLIAM 0. HLURD, o F NEW Y ORK, N. Y. Letters Patent No. 62,490, dated February 26, 1867.

IMPROVEMENT IN TH MANUFACTURE OF PAINTS.

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TO ALL WHOM :IT MAY CONCERN: I I V Be it known that I, W'ILLIAM C. HUIRD, of. the city,' county, and Stateof New York, have invented a new and useful Improvement in the Process of Manufacturing (Paints; andldo'hereby declare that the following I,

is a full, clear, and exact description of the same. v

f Ihaye heretofore obtained L etters lfatent for the process of manufacturing paint by the addition of powdered. quartz to oil, lead zinc, and other materials ordinarially emnlo yedjnfthe manufacture of paints,

In this manufacture .I have ascertained that in the manufacture of certain qualities of paints it'is'necessary that'the quartz should be subjected to chemical a'ction before being mixed, after itis pulerizied, forthe pnrpose of removing certain impurities and-fitting itlfor use. The quartz shqfild'firs't he reduced to-tlie fox-in of a very fine powder by being ground, and it is then fiurified accordin g'to circumstances, by the whole of:- part i of the fcllowing desribed process; 'or'the' quartn may be subjected to the action of the solutions before being ground, p ,Take one hundred'and sixty gallons of water, and mix therewith five pounds of snlphuric acid'or its quivalent; or eight pounds of salt or five pounds ofpctash, or the same quantities of both salt andlpotash nixed. Q When dissolved, stir inthe pnlveri'zed quartz' and-agitatefthe same in the-solution until thoroughly saturated an dinter mingled Thengdraw 08 the solution, and use the purified quartz by mixing it with oil and eador zinc, or other substances employed in making paint, according to the directions set jt'orth in my original nte'nt. Y f 1 I do not claim either of the solntionsas being new in itself, but claim the use as a part of a process new is an entirety, and-which results in a superior quality of, paint for certain purposesL -What I claim as my in'v e'ntion and desire to secure by Letters Patent, is- H i I I The. process of manufacturing paint and colorsby mingling with ,oil, lead, zinc, and other materials rdinarily employed in the manufacture, pulverized quartz which has iirst'been' subjected to theaetion of an aid. saline, or alkaline solution, or all'or any of them',,substant;ially as and for the purpose set forth.

In testimony-whereof Ihave signed'my name to this specification in the presence-of two sub scribing witnesses. I .WILLIAM 0'. HURD. 'Wituesses J. B. Nouns, i Jos. A, Bnnws'rnaf 

